Originally Posted by dc/dc
I believe your issue is that you have a laptop that does not have a physical latch to close the lid and instead has a magnet. When you place your device on the laptop, the magnet for the speaker in the phone is mating up with the magnet in the laptop, and the laptop thinks it has been closed. The solution is to not do this anymore.
oh, well now that makes sense. it never happened before and i thought it was the oddest thing. thanks :D